Textile material



a... Jam- 1,1935 I 4 1,986,349

UNITE STATES PATENT OFFICE.

'rExmE m'rsamr.

Guillaume Lardy, Calulre, France, asslgnor to Du Pont Bayou Company, New York, N. Y a corporation of Delaware 11o. Drawing. Application July 27, 1932, Serial No. 625,217.. In France August 8, 1931 12 Claims. (01. 91-68) This invention relates to sizing yarn containcontemplates a sizing composition for thread ing organic derivatives of cellulose and more parformed of an organic derivative of cellulose which, ticularly to the provision of a size which does not in addition to possessing the highly desirable modify the original characteristics of the yarn properties of quick setting and easy. and complete 5 and which is readily and substantially complete-, removability from the yarn, is further and par- 6 1y removable therefrom. ,ticularly characterized in that it does alter .the

T xtil th d o yarn formed 01' organic d i characteristics of the thread,-especially with reatives'of cellulose,such as cellulose acetate, have h t to dyeing and delustering. been, prior to the instant invention, sized ith a, In accordance with the instant invention these 10 composition comprising boiled linseed oil and 9. objects are achieved by utili i as h si a 1 drying agent, when u h size wa u d, it composition which is free from any drier and was found that after the removal of the same, i ive. the thread did not possess its original characterh sizing positio c nte p a y the istics. The thread, after the removal of the size, instant inv nti n comprises a blown drying oil and particularlyif the size had been on the thread or n i of the V rni h ype. specifically blown 15 for some time, was characterized by a special linseed It is o be ted t at y blowing sensitiveness toward saponifying agents (delinseed Oil i is p i l t pr p re an oil which acetylation) and the usual agents, such asboilis cap l of drying on the thread as p y ing soap solution, that were employed for dees cooked boiled linseed oil without requiring lustering, In a umber f cases the-effects of th the addition of siccatives or other oxidation or 20 partial de-acetylation gave rise to streaks in dye- Polymerization catalysts, the p s ce of which ing and also gave irregular dlustering effects. is detrimental to thread rm of an ni The degree of modification of the properties iva ive of cellulose. of the thread sized with a dried cooked linseed oil In the p ef red mbodiment of the invention base of the type previously mentioned is a direct all anti-oxidant is added to e blown oil, 5 function'of the quantity of size on the thread and whereby subsequent formation of o p u ds of the period of time during which it remains thereperoxide nature in the oil ppli d to he thread on p is inhibited. Likewise, by the incorporation of I havefound that by sizingthread formed of an anti-oxidant i the blown il. e harmfu an organic derivative of cellulose witha size subeffects the thread by a y mp un o a 30 stantially free from driers and siccativs and com- Peroxide nature Produced accidentally n the prising a blown linseed oil and an anti-oxidizing blowing op ration are counteracted. agent, the properties of the thread, after the re- AS an anti-oxidant, it is o v ous that numerous moval of the size, are substantially the same as materials may be usedshtisfe-otoly results ave those possessed by the thread prior to the applibeen obtained when y y p y 35' cation of the size, whereby the above-mentioned phenyleinine, P y p p y ydigadvantages may be overcome, droquinone, etc. are employed as the anti-oxidant.

It is therefore an .object of this invention to Th q y of anti-oxidant y y within provideasizing composition for textile fibres, such Wide mi S f ry resu ts have been seas artificial thread formed of an organic deriva- Cured w the q y of -oxidant was less 40 tive of cellulose, which does-not modify the origithan 1% by wei based on t e crude linseed nal properties of said thread, particularly in so In actual Practice good e ults were secured far as the dyeing and delustering thereof is conwhen approximately 0.1% to 0.2%, more or l cerned. of the anti-oxidant based on the linseed oil was Another object of this invention is to provide used. 45 a sizing composition substantially free from The preferred composition consisting of blown driers and siccatives and comprising blown linlinseed oil and anti-oxidant, as shown by the seed oil and an anti-oxidizing agent. specific example hereafter set forth, may, if de- A further object of this invention is to provide sired, be dissolved in an appropriate volatile solthread, yarn, etc. sized with the compositions vent or it may be dispersed in any suitable 0 aforementioned. vehicle to constitute the final sizing composition. Other objects will appear from the following In order to more fully explain the instant indescription and appendcd claims. vention, the following illustrative example is As is apparent from the aforementioned obgiven;

jects, the instant invention in one of its aspects Examplekgs. of crude linseed oil having 5 an acid index of 2 are heated to a temperature below 100 C. while air is blown therein until the acid index is increased to at least 100% of its ing three bands of warp of the types hereafter set forth..

The first band was composed of thread sized in accordance with the instant invention.

The second hand was composed of thread sized with cooked linseed oil containing a siccative in accordance with the prior art.

The third band was composed of non-sized thread.

When this fabric was desized at the end of several days in a soap bath at 75 C. to 80 0.,

all' the bands dyed in practically equal shades.

' It shouldbe noted nevertheless that on band 1 hand and band 2 on (and naturally on hand 3) the desizing was complete at lower temperatures, for example C. 7

When this fabric was desized only at the end of a certain time, for example 2 months, and it was dyed either with basic dyestuffs or with acetate dyestuffs, bands 1 and 3 had the sam shade and band 2 had a darker shade.

When, at the end of the same time, this fabric was subjected to a treatment in which it was boiled in a 2% soap bath containing 0.3 gram NazCOa p r 10 grams acetate thread (Rhodiaseta), the volume of which is at least 30 times the weight of the merchandise, bands 1 and 3 showed no appreciable deacetylation whereas band 2 was distinctly saponified, the comparative characteristics of these bands being shown by dyeing them with Diamine FF blue which did not dye bands 1 and 3 and which dyed band 2 irregularly. I

When the time of storage was prolonged, for example 1 month, before desizing, the difierence between the behavior of bands 1 and 3 on the one the other was still more. pronounced.

In addition, it should be noted that the boiling treatment delustered band 2 irregularly and more intensely than bands 1 and 3.

From the foregoing it is apparent that, when textile materials, such as artificial thread formed of an organic cellulose derivative, such as cellulose acetate, are sized with the composition com stituting one phase of the instant invention, after the removal thereof the original properties of the thread are in no wise altered. In other words, the desized thread possesses the same qualities of dyeing, delustering and resistance to deacetylation as the'original thread.

Instead of'hlowing the oil with air, it is also within the scope of this invention to blow it with oxygen, ozone, etc.

Though the invention is described with particular reference to thread formed of an organic derivative of cellulose, it is not restricted thereto. It is equally applicable to textile fibers and .threads of all kinds.

Since it is obvious that various changes and modifications may be made in the specific d0- stricted thereto except as tails above described,- this invention is not redefined in the appended claims.

I claim:

1. Textile fibers or threads sized with a com-- position substantially free from siccatives and consisting of a blown drying oil of the varnish oil type and an anti-oxidant. v

2. Textile fibers or threads sized with a composition substantially free from siccatives and consisting of blown linseed oil and an anti-oxidant.

3. Artificial fibers or threads sized with a composition substantially free from siccatives and consisting of a blown drying oil of the varnish oil type and an anti-oxidant.

4. Artificial fibers or threads sized with a composition substantially free from siccatives and consisting of blown linseed oil and an anti-oxidant.

5. Artificial fibers or threads formed-oi an organic derivative of cellulose sized with a composition substantially free from siccatives and consisting of a blown drying oil of the varnish oil type and an anti-oxidant, said composition being characterized in-that upon removal thereof the fibers or threads the same characteristics with respect to dyeing and delustering as they had prior to the application of the size.

8. Artificial fibers or threads formed of an orgame-derivative of cellulose sized with a composition substantially free from siccatives and consisting of blown linseed oil and an anti-oxidant, said composition being characterized in that upon removal thereof the fibers or threads possess the samecharacteristics with respect to dyeing and delustering as they had prior to the application of the size.

7. Artificial fibers or threads formed of cellulose acetate sized with a composition substantially free from siccatives and consisting ofa blown drying oil of the varnish oil type and an anti-oxidant, said composition being characterized in that upon removal thereof the fibers or threads possess thesame characteristics with respect to dyeing and delustering as they had prior to the application of the size.

8. Artificial fibers or threads formed of cellulose acetate sized with a composition substantially free from siccatives and consisting of blown linseed oil and an anti-oxidant, said composition being characterized in that upon removal thereof the fibers or threads possess the same characteristics with respect to dyeing and delustering as they had prior to the application of the size. v

9. An artificial thread formed of cellulose acetate and sized with a composition substantially free from siccatives and consisting of a blown drying oil of the varnish oil type and an antioxidant in an amount not exceeding 1% by weight based on said oil, said composition being characterized in that upon removal thereof the thread possesses the same characteristics with respect to dyeing and delustering as it had prior to the application of the size.

10. An artificial thread formed of cellulose acetate and sized with a composition substantially free from siccatives and consisting of a blown linseed oil and an anti-oxidant in an amount not exceeding 1% by weight based on said oil, said composition being characterized in that upon removal thereof the thread possesses the same characteristics with respect to dyeing and delustering as it had prior to the application of the size.

11. An artificial thread formed 01' cellulose'acetate and sized with a composition substantially free from siccatives and consisting 01. a blown drying oil of the varnish oiltype and an antioxidant in an amount of approximately 0.1%v to 0.2% by weight based on said oil, said composition being characterized in that upon removal thereof the thread possesses the same characteristics with respect to dyeing and delustering 10 as it had prior to the application of the size.

12. An artificial thread formed of cellulose acetate and sized with a composition substantially free from siccatives and consisting of a blown linseed oil and an anti-oxidant in an amount of approximately 0.1% to 0.2% by weight based on said 011, said composition being characterized in that upon removal thereof the thread possesses the same characteristics with respect to dyeing and delustering as it had of the size.

, GUILLAUME LARDY.

prior to the application 

